Wrench attachment



(No Model.)

- J KENNEY.

- WRENCH ATTACHMENT.

No. 418,521. Patented Dec. 31', 1889.

N. PETERS. Phawmm n m. Wa-hinglan n c UN T-E STATES- OFFIGE.

I JAMES KENNEYQOFN WARK, NEW JERSEY, ASSIGNOR To .THE' PRENTISS vIsECOMPANY, on NEW YORK.

WRENCH ATTACHMENT.

SPECIFICATION forming part L tters, IEatentNo. 418,521, dated December31,1889. I

Applicationfilcd April '3, 1889. Seria1No.305,810. (No model.)

To aZZ whom it may corqcefin:

Be'it known that I, J AMES KENNEY, of Newark, county of Essex, and Stateof New J ersey, have invented certain new and useful "Improvements in\Vrench Attachments, of

' which the. following isa full, clear, and exact description, referencebeing had to the: ac-

companying drawings, and to the letters of reference marked thereon. I'Myinvention relates to attachments for wrenches, especially such as areknown as monkey-Wrenches]? and the Various modifications thereof, forthe purpose of converting themfrom nut-wrenches, into pipe-wrenches. 1 5i The object of my invention'is to provide a simple, cheap, durable, andeffective attachment ,or appliance which maybe instantly adjusted uponthe wrench or detached there-. from, the samebeing calculated totransform the nut-wrench into a pipe-wrench, or one for turningcylindrical objects, which appliance will remain in place upon thewrench until purposely removed, resist the wrenching strain to bestadvantage, require no screws for setting and holding, it inv place, haveno projecting parts liable to damage or disarrangement while in use, andbe applicable to i various sizes of wrencheswithout alteration;

To'accomplish all of this, and to secure other and further advantages inthe matters of construction and use, my improvements involve certain newand useful arrangements or combinations of parts and peculiaritiesof'construction, as will be herein first fully de-,

scribed, and then pointed out in the claims.

In the accompanying drawings; forming.

part of this specification, Figure 1 is a side view of a wrench with myimproved attachment applied thereon in position foruse.

Fig. 2 is a front elevation at the attachment upon a plane-cuttingacross the shank of the wrench between the wrench-heads. Fig. 3, is arear view of the appliance detached, illustrating one manner of applyingthe retainingspring. Fig. 4 is a plan view showing a blank 7 from whichthe bridle and spring may be made in one piece and afterward bent toproper shape for application to the gripper. Fig. 5 is a view inelevation showing the bridle itself made in the form of a spring and Yapplied upon the gripper, all in accordance with my invention.

In all the figures like letters of reference,

wherever they occur, indicate corresponding parts. Y

A is the stationary or hammer head of a wrench, B the movable head, andCthe shank. In the class of wrenches to whichmy improved device isespecially applicable the hammer-head usually projects onall s'idesofthe shank. f

1 D is the gripper appliance, intended to bear i against the inner faceof the hammer head,

wrenching strain to the shank, by which it is a best withstood, withoutdanger of displacing the gripper or breaking it, so that it may be madeas light as is consistent with the uses to which it is to be put. Thegripper thus made is easily adjusted to place. Its inner face ispreferably slightly inclined, so that the Wrench may-be wedged upon theobject to be turned. To hold the gripper in place so =thatwhile thewrench is being used it will not be detached, and so as to avoid anynecessity. of readjusting it by hand at every new application of thewrench, I apply to it a' bridle E, which may be dropped or forced downsufficiently far (as indicated in dotted lines, 'Fig. 1) to admit thehammer-head, and which will bear against the inclined part ofthehammer-head so as to secure the gripper. The gripper being in place,the bridle thereon has only to be brought to its bearing against thehead, and there held by any light springpressure. The spring may beapplied in a' variety of ways.

In Figs.= 1, 2, and 3, F is the spring, which is made separate from thebridle and secured thereupon in any suitable way. The lower end of thisspring bears upon the outer face of the hammenhead. Instead of makingthe spring of a separate piece from the bridle, it may be made of onepiece therewith, as indicated in'Fig. 4; and when made in either ofthese forms the bridle is loosely hinged upon the sides of the gripper,the ends I) of the bridle being sprung into suitable perforationsprovided for them, as indicated, or the hingeconnection being made inany suitable or preferred manner, as by rivets, &c. spring may beapplied in other ways to produce a like holding efiect, as, forinstance, it may be made a part of the bridle, as shown in Fig. 5, thebent portions 0 being fixed to the bridle, as by entering inclinedperforations provided for them, so that their inner ends cannot move.The bridle has only to be lowered, (in the last form against the actionof the spring,) slipped over the hammer-head, and the spring will holdit to its seat in the desired manner, and the bridle in turn will thenhold the gripper as required.

The improved appliance can be snapped to place in an inst-ant with onemotion, and is then ready for use. It can be detached with equalfacility, and is found to admirably answer the purpose or object of thcinvention, as previously set forth.

The

Having now fully described my invention, what I claim as new herein, anddesire to secure by Letters Patent, is-

. 1. The herein described attachment for wrenches, composed of theyoke-shaped gripper, the movable bridle applied upon said gripper, and aspring for holding the bridle In testimony that I claim t-he foregoing Ihave hereunto set my hand in the presence of two witnesses.

JAMES 'KENN EY.

\Vitnesses:

JOHN BUCKLER, WORTH OSGOOD.

